A few open ports

Hey all -

New user here, just deployed XG on a Zotac CI323.  So far, I am very impressed.

I just deployed the XG into my network here.  To do a little checking, I ran a nmap scan from my Macbook while connected to my phone's hotspot so I'd be coming outside in to my public IP address on the WAN side.

I seem to have 3 ports open.

21/tcp - FTP

80/tcp - HTTP

1720/tcp - h323q931

Can anyone out here in the forums help me understand why these are open?  My default network rule at the bottom of the stack is Source= Any Zone/Any Host, Destination Any Zone/Any Host, Any Service, Drop and Log

Thanks in advance!

Jesse